/Engine/Source/Runtime/MeshDescription/Public/MeshDescription.h
Returns reference to an array of Triangle IDs connected to this vertex instance
[TArrayView](API\Runtime\Core\Containers\TArrayView)< const [FTriangleID](API\Runtime\MeshDescription\FTriangleID) > GetVertexInstanceConnectedTriangleIDs ( const [FVertexInstanceID](API\Runtime\MeshDescription\FVertexInstanceID) VertexInstanceID ) const